The earthquake hit the region at around 8: 30 am and its epicentre was Nicobar Islands region.
There was no tsunami alert issued as sea levels around the Andaman Nicobar archipelago showed no major rise, said SPS Shenoi, Director INCOIS.
As per India Meteorological Department an earthquake of Magnitude 6 occurred at 08:23:07 IST, Latitude 7.6 N and Longitude 94.5 E.
The quake occurred at a depth 84 Km, IMD said. There were no immediate reports of loss of life or damage to property, officials said.
Andaman and Nicobar is an Integrated Services Command.
Recently, Defence Minister Nirmala Sitharaman visited Nicobar on a two day visit where she watched a joint amphibious exercise on Monday, participated by the three armed forces, off the Campbell Bay coast, the southernmost island of the nation. She also reviewed the operational readiness of the command. The exercise, conducted near Campbell Bay, included 10 ships, six aircraft and 700 troops of the Command, a defence ministry statement said.